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What is anthropogenic air pollution?

How long is data collected and analyzed before a region’s climate can be determined?

The structure of a hailstone most closely resemble a(n)

Which is a beneficial function of ozone?

The bright spot in the lower left corner of the image below indicates that a tornado is on the ground. What is the bright spot? 

It is winter and an air mass forms off the coast of Florida. It travels north toward Chicago. By the time it reaches us, its characteristics have changed. What did it start out as and what characteristics does it have now?

What is a gravimetric analysis? 

How do we know that air pressure is lowest in the center of a tornado?

What pressure system is responsible for the rainy, foggy weather so common in North    America’s Pacific Northwest region?

The Doppler radar image ishown below contains information that highly suggests a funnel cloud will form. What is it?